Roots, who was born Keith Graham, moved to the UK when he was 10 years old and later spent time in prison after a drugs and firearms conviction.

Looking back on growing up in South London, he said: "I remember terrible housing, I remember lack of jobs, I remember a police state.

"Most importantly, I remember the SAS laws, stop and search, which was a scourge to all black boys and girls, because you didn't have to do anything to get in trouble or for the police to be intrusive and stop and search you, and hence whatever you said, you could spend a night in a police prison."